package com.lhk.config;

import at.pollux.thymeleaf.shiro.dialect.ShiroDialect;
import org.apache.shiro.spring.web.ShiroFilterFactoryBean;
import org.apache.shiro.web.mgt.DefaultWebSecurityManager;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

import java.util.LinkedHashMap;
import java.util.Map;

@Configuration
public class ShiroConfig {

    //ShiroFilterFactoryBean
    @Bean
    public ShiroFilterFactoryBean getShiroFilterFactoryBean(@Qualifier("securityManager") DefaultWebSecurityManager defaultWebSecurityManager){
        ShiroFilterFactoryBean bean = new ShiroFilterFactoryBean();
        //设置安全管理器
        bean.setSecurityManager(defaultWebSecurityManager);

        //添加Shiro的内置过滤器
        /*
        * anno:无需认证就可以访问
        * authc:必须认证了才能访问
        * user:必须有 记住我 功能才能用
        * perms:拥有对某个资源的权限才能访问
        * role:拥有某个角色权限才能访问
        * */

        //拦截
        Map<String, String> filterMap = new LinkedHashMap<>();
        //授权，正常情况下，没有授权会跳转到提示未授权信息的界面
        filterMap.put("/user/add", "perms[user:add]");
        filterMap.put("/user/update", "perms[user:update]");

        filterMap.put("/user/*", "authc");
        bean.setFilterChainDefinitionMap(filterMap);

        //设置登录的请求
        bean.setLoginUrl("/tologin");
        //设置未授权页面
        bean.setUnauthorizedUrl("/noauth");

        return  bean;
    }

    //DefaultWebSecurityManager
    @Bean(name = "securityManager")
    public DefaultWebSecurityManager getDefaultWebSecurityManager(@Qualifier("userRealm") UserRealm userRealm){
        DefaultWebSecurityManager securityManager = new DefaultWebSecurityManager();
        //关联UserRealm
        securityManager.setRealm(userRealm);
        return securityManager;
    }

    //创建 realm 对象,自定义类
    @Bean
    public UserRealm userRealm(){
        return new UserRealm();
    }

    //整合ShiroDialect:用于整合Shiro和thymeleaf
    @Bean
    public ShiroDialect getShiroDialect(){
        return new ShiroDialect();
    }

}
